#631F61
Closest named color: Grape Purple (#5D1451). oklch(37.2% 0.129 329), rgb(99, 31, 97).
Aa
White text reads best on this color (11.05:1).
About this color
#631F61 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.129 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #631F61 |
| RGB | rgb(99, 31, 97) |
| HSL | hsl(302, 52%, 25%) |
| OKLCH | oklch(37.2% 0.129 329) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #631F61 | 11.05:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #631F61 | 1.89:1 | Fails | Lc 9.1 | Not readable |
| #631F61 text on white | 11.05:1 | AAA | Lc 94.8 | Preferred for body text |
| #631F61 text on black | 1.89:1 | Fails | Lc -7.8 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F5E4F3
oklch(93.7% 0.027 329.5)
-
Step 200
200
#EECDEB
oklch(88.5% 0.054 328.9)
-
Step 300
300
#E4AAE0
oklch(80.9% 0.098 328.7)
-
Step 400
400
#D47AD0
oklch(70.7% 0.155 328.7)
-
Step 500
500
#C753C3
oklch(63.2% 0.198 329)
-
Step 600
600
#B230AF
oklch(55.6% 0.215 329)
-
Step 700
700
#992097
oklch(49.1% 0.201 328.9)
-
Step 800
800
#7C1E7A
oklch(42.6% 0.166 328.9)
-
Step 900
900 (this color)
#631F61
oklch(37.2% 0.129 329)
-
Step 950
950
#3B143A
oklch(27% 0.083 328.6)
#631F61 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #183663 | 0.135 |
| Deuteranopia (no green cones) | #313F5F | 0.116 |
| Tritanopia (no blue cones) | #66273D | 0.070 |
| Achromatopsia (no color) | #3C3C3C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631F61
#631F61
oklch(37.2% 0.129 329)
- #004F1E
#004F1E
oklch(37.3% 0.105 149)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #631F61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Rich Purple #720058 ΔE 0.044
- Velvet #750851 ΔE 0.050
- Plum Purple #4E0550 ΔE 0.070
- Merlot #730039 ΔE 0.077
- Royal Purple #4B006E ΔE 0.079
- Red Purple #820747 ΔE 0.080
- Purple #800080 ΔE 0.080
Use #631F61 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.